Macroscale and Microscale Organic Experiments
7th Edition
ISBN: 9781305577190
Author: Kenneth L. Williamson, Katherine M. Masters
Publisher: Brooks Cole
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Question
Chapter 5, Problem 13Q
Interpretation Introduction
Interpretation:
The explanation for the arrangement of water inlet and outlet position in the water-cooled condensers should be given.
Concept introduction:
The process to separate the component from a liquid mixture by boiling of selective liquid followed by condensation of the mixture is called distillation. The distillation depends upon the boiling point difference of the components. The distillation is used in various industries to get the pure component
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9.) Limonene (136.24 g/mol) is one of the compounds that are found in rinds of citrus fruits and it
can be extracted via steam distillation. How much steam is required to extract 150 grams of limonene
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A. 26.4 g
B. 1506 g
C. 733 g
D. 96.9 g
A student obtained a solid product in a laboratory synthesis. To verify the identity of the solid, she measured its melting point and found that the material melted over a 12 degrees Celsius range. After it had cooled, she measured the melting point of the same sample again and found that this time the solid had a sharp melting point at the temperature that is characteristic of the desired product. Why were the two melting points different? What was responsible for the change in the melting point?
Chapter 5 Solutions
Macroscale and Microscale Organic Experiments
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- Define the normal boiling point of water. Why does a sample of boiling water remain at the same temperature until all the water has been boiled? Define the normal freezing point of water. Sketch a representation of a heating/cooling curve for water, marking clearly the normal freezing and boiling points.arrow_forwardIn the distillation of a pure substance (e.g., water), why does all of the water not vaporize at once when the boiling point is reached?arrow_forwardA mixture of toluene (bp110.8C) and water is steam distilled. Visual inspection of the distillate reveals that there is a greater volume of toluene than water present, yet water (bp100C) has the higher vapor pressure. Explain this observation.arrow_forward
- The molecular mass of butanol, C4H9OH, is 74.14; that of ethylene glycol, CH2(OH)CH2OH, is 62.08, yet their boiling points are 117.2 C and 174 C, respectively. Explain the reason for the difference.arrow_forwardExamine the nanoscale diagrams and the phase diagram for Question 112. Match each particulate diagram (1 through 7) to its corresponding point (A through H) on the phase diagram.arrow_forwardA 1.40-g sample of polyethylene, a common plastic, is dissolved in enough organic solvent to give 100.0 mL of solution. What is the average molar mass of the polymer if the measured osmotic pressure of the solution is 1.86 mm Hg at 25 C?arrow_forward
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